Optical disk



Nov. 2 1926.

w. WITTKOPF OPTICAL DISK Filed Dec. 10 1924 INVENTOR ATTORNEY WITNESS:

Patented Nov. 2, 1926.

UNITED. STATES 1,603,418 PATENT oFFIc WIT'IKOPF, OF BALTIMORE, MARYLAND.

orrrcn. nrsx.

Application filed December 10, 1924. Serial No. 755,053.

e tion of train on the eyes.

The -nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawing forming part'of this application, like numerals of reference indicate similar parts in the several views, and

' wherein: V

Figure 1 is a view of a pair of spectacle.

frames showing the optical disk associated therewith.

Fi re 2 is a view of the device for test- 39 ing t e eyes to determine the desired size of the sight openings. or slots in each particular case. g

Figure 3 is a view showing the optical device-associated with the lens.

Figure dis a sectional view taken on line' 4-4 of Figure 3. a p

The devlceforming the subject matter of the present invention is primarily intended to preserve and restorethe eye sight, with a view of eliminating the use of eye glasses which attract light to the eyes with harmful results. The invention is in the nature of a disk constructed from any suitable dark ma- 9 This disk 10 is provided wit a plurali of spaced parallel'slots 14, each slot pfovi ing a restricted sight space, inasmuch as the object or reading matter to be viewed is seen throu h these spaces. The size of theslots is wit reference to their Width of course varied to suitthe condition-0t the eyes ineach particular case, but by use of the invention, the latterprotects the eyes from light, which is otherwise attracted by the use of eye glasses, both in advance of and from the rear of the glasses as will bereadily understood. By cutting ofi the light or illumination from the eyes through the instrumentality of a disk in the manner just described, 7 it has been found that the image or reading 6 matter being viewed through the slots,

tands out more. prominently, -than when viewed .with the ordinary eye glasses with less strain on the eyes. In the case of very-.

weak eyes, the disk 10 is adapted to be used in conjunction with the ordinary eye glass lens, and can be arranged either in advance of or at the rear of said lens indicated at 15.

When used in this connection, the disk is arranged in the ordinary rim 16 ofthe eye -5 glass'frame. However, after the eyes become stronger, the disk. 10 is adapted to be used without the lens 15, and it may also be stated that these slots may be arranged either in' a horizontal or vertical position in front of the eyes if desired.

In Figure 2, I have illustrated a device for testing the eyes for the purpose of'determiningthe size of the si t slots or spaces, which device is constructed somewhat similar toan ordinary pair of'eye glasses, the frame of which is indicated generally at 17'. Each lens holder 18 has its opposite sides grooved to receive a lens of dark non-transparent material which is made up of two sections 19 and 20 respectively, the section 19 is stationary while the sectlon 20 is susceptible of sliding adjustment toward and away from the section 19 being controlled by means of a threaded adjusting element 21 mounted on the frame and connected with the section 20 as shown in Fiigu're 2. This frame is placed upon the. hea ,the same as an ordinary pair of eye glasses, and by'adjusting, the sections 20 toward and away from the sections 19, the size of the sight openings or spaces most beneficial to the eyes can be readily determined.v .Then the disks 10 can he made with the slots 1450f that pa'rticular size. a

While it is believed that from the foregoing description, the nature and advantages of the invention will be readily ap arent', I desire'to have it understood that do not limit myself to what is herein shown and described, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

Having thus described the invention, I claim:

In combination, an eye-glass frame including rims of substantially rectangular outlines, each having opposed groove, a lens of dark, non-transparent material arranged in each rim, each lens including afixed section and relatively slidably section, both of said sections being received by the groove of said rim, and a threaded adjusting element threadedthru an opening in said rim and swivelly connected with the sliding section 1 of the lens, whereby the latter can be moved towards and away from the stationary part as and for the purpose specified.

In testimony whereof I aflix my signature.

' WILLIAM WITTKOPF. 

